<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
  	<head>
    	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    	<title>String API</title>
    	<script type="text/javascript" src="01_string.js"></script>
	    <script type="text/javascript">
	      	var str = "aB1";
	
	      	alert(isLowercase(str, 0));
	      	alert(isUppercase(str, 1));
	      	alert(isNumber(str, 2));
	    </script>
  	</head>
  	<body>
  	</body>
</html>
